﻿using System;
namespace Velocity4Net.Runtime.Res
{

    /*
     * Licensed to the Apache Software Foundation (ASF) under one
     * or more contributor license agreements.  See the NOTICE file
     * distributed with this work for additional information
     * regarding copyright ownership.  The ASF licenses this file
     * to you under the Apache License, Version 2.0 (the
     * "License"); you may not use this file except in compliance
     * with the License.  You may obtain a copy of the License at
     *
     *   http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing,
     * software distributed under the License is distributed on an
     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     * KIND, either express or implied.  See the License for the
     * specific language governing permissions and limitations
     * under the License.
     */








    /**
     * This class represent a general text resource that may have been
     * retrieved from any number of possible sources.
     *
     * Also of interest is Velocity's {@link org.apache.velocity.Template}
     * <code>Resource</code>.
     *
     * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a>
     * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
     * @version $Id: ContentResource.java 1866609 2019-09-08 10:42:47Z cbrisson $
     */
    public class ContentResource : Resource
    {
        /** Default empty constructor */
        public ContentResource() : base()
        {
            setType(ResourceManager.RESOURCE_CONTENT);
        }

        /**
         * Pull in static content and store it.
         * @return True if everything went ok.
         *
         * @exception ResourceNotFoundException Resource could not be
         * found.
         */
        public override bool process()
        {
            BufferReader reader = null;

            try
            {
                Writer sw = new StringBuilderWriter();

                reader = new BufferedReader(resourceLoader.getResourceReader(name, encoding));

                char buf[] = new char[1024];
                int len = 0;

                while ((len = reader.read(buf, 0, 1024)) != -1)
                    sw.write(buf, 0, len);

                setData(sw.ToString());

                return true;
            }
            catch (ResourceNotFoundException e)
            {
                // Tell the ContentManager to continue to look through any
                // remaining configured ResourceLoaders.
                throw e;
            }
            catch (Exception e)
            {
                String msg = "Cannot process content resource";
                log.Error(msg, e);
                throw new VelocityException(msg, e, rsvc.getLogContext().getStackTrace());
            }
            finally
            {
                if (reader != null)
                {
                    try
                    {
                        reader.close();
                    }
                    catch (Exception ignored)
                    {
                    }
                }
            }
        }
    }
}